Liquid-fuel burner.



C. T. EDMONDS. LIQUID FUEL BURNER. APPLICATION men JAN-8,1916. RENEWED MAR. 15,1917.

1 ,226,871 Patented May 22,1917.

Fig.1.

gnuentop UNITED STATES PATENT OFFICE.

CHARLES T. EDMONDS, OF DRUMRIGHT, OKLAHOMA, ASSIGNOR OF ONE-HALF T0 ROBERT L. COCHRAN', OF DRUMRIGI-IT, OKLAHOMA.

LIQUID-FUEL BURNER.

Patented May 22, 1917.

Application filed January 8, 1916, Serial No. 71,046. Renewed March 15, 1917. Serial No. 155,091.

To all whom it may concern.-

Be it known that I, CHARLES T. EDMONDS, a citizen of the United States, residing at Drumright, in the county of Greek and State of Oklahoma, have invented certain new and useful Improvements in Liquid- Fuel Burners, of which the following "is a specification.

This invention relates to certain new and useful improvements in liquid fuel burners.

The primary object of this invention is the provision of a highly eflicient burner for atomizing and vaporizing a fuel such as hydro-carbons and other oils and the supply of the combustion mixture to the burner.

A further object of the device is the provision of a liquid fuel burner that is easy and inexpensive to manufacture and which furnishes a completely combustible fuel by atomizing oil through the agency of heated gas under pressure.

A still further object is the provision of a liquid fuel burner especially adapted'for heating purposes such as employment within the fire box of a boiler and being adapted to receive a mixture of oil and atomizing steam under pressure and capable of imparting a high degree of heat.

With these general objects in view and others that will appear as the nature of the invention is better understood, the same consists in the novel combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claims.

In the drawings forming a part of this application and in which like-designating characters refer to corresponding parts throughout the several views Figure 1 is a side elevation of the device operatively positioned within a fire box.

Fig. 2 is a central longitudinal sectional view through the device, and

Figs. 3 and 4 are sectional views taken respectively upon lines IIIIII and IVIV of Fig. 2.

Referring morein detail to the drawings,

the present device is herein illustrated in connection with a fire box 10 of a boiler structure or any other form of heater and into which the tubular mixing shell 11 of the burner is secured in any desired position, the said shell having a contracted neck 12 at its outer rear end preferably secured through an opening 13 in the fire box wall.

A closure cap 14 is provided for the inner end of the shell 11 being preferably screwthreaded thereon as at 15. A fuel mixing tube 16 is provided with an internally threaded nut 17 which is adapted to be secured to the externallythreaded outer end 18 of the shell neck 12, thus axially securing the mixing tube 16 within the said shell, it being understood that the inner end 19 of the mixing tube is open and terminates a desired distance short of the shell cap 14, while one side of the shell is provided with a plurality of outlet openings'20 for the escape of the combustion fluid.

A steam jacket 21 is provided having a steam-supply pipe 22 communicating therewith and terminating in a fluid-feed nozzle 23 terminating in a contracted open end 24 positioned inwardly of the mixing tube 16 by means of the externally screw-threaded engagement of the nozzle 23 with the interior of the outer end portion of the mixing tube 16 as at 25.

An oil feed nozzle or nipple 26 is adapted to be axially maintained within the steam jacket 21 being inserted through the outer end 27 thereof and is retained by means of a set-nut 28 screw-threaded upon a projecting boss 29 of the jacket and engaging an annular shoulder 30 of the said nipple. The nipple 26 extends axially 0f the nozzle 23 and terminates in a contracted open end 31 within the said nozzle slightly spaced from the nozzle outlet 24. An oil supply pipe 32 is connected to the outer curved enlarged end 33 of the nipple 26 and whereby the latter is supplied with oil under pressure and in governed quantities as may be desired, while the steam is admitted into the jacket 21 heating the oil in the nipple 26 and atomizing and partly vaporizing the oil from the nipple outlet 31 and within the outlet end of the nozzle 23 so that the fuel discharged through the nozzle outlet 24 within the mixing tube 26 possesses high combustible properties. This mixture enters the mixing shell 11 of the burner under considerable pressure and hits the inner face 34 of the cap 14 which acts as a bafile plate for further mixing the fluid which readily escapes through the outlet perforations 20 of the shell, where it is ignited and burns with great heat for providing heat within the fire box or wherever the burner is positioned.

While the form of the invention herein shown and described is what is believed to be the preferred embodiment thereof, it is nevertheless to be understood that minor changes may be made therein without departing from the spirit and scope of the invention as claimed.

lVhat I claim as new is 1. A burner comprising a perforated shell, a baille cap upon the inner end thereof, a mixing tube screw-threaded upon the outer end of the said shell and extending axially therein and having an open inner end spaced from the said cap, a steam jacket provided With a nozzle screw-threaded within the outer end of the said tube and terminating in a contracted discharge opening within the said tube, a steam supply pipe communicating with the said acket, and an oil supply pipe tapped into the outer end of the said jacket.

Copies of this patent may be obtained for 2. A burner comprising a perforated shell, a battle cap upon the inner end thereof, a mixingtube screw-threaded upon the outer end of the said shell and extending axially therein and having an open inner end spaced from the said cap, a steam jacket provided with a nozzle screw-threaded within the outer end of the saidtube and terminating in a contracted discharge opening Within the said tube, a steam supply pipe communicating with the said jacket, a nipple axially positioned within the said jacket and nozzle and having a contracted outlet and positioned within the said nozzle and spaced 7 from the nozzle outlet, a lock nut connect ing the said nipple and jacket, the said nozzle having a curved enlarged outer end, and an oil supply pipe connected to the said onlarged end of the nipple.

In testimony whereof I afix my signature.

CHARLES T. EDMONDS. lVitnesses R. S. GEKRAN, FRANK NORRIS.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

